The Claim

The human thyroid gland evolved under selective pressures from a high-fat, animal-based diet rich in zinc, iron, and magnesium, implying that these nutrients are optimal for maintaining proper thyroid function.

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What the research says

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Supports
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Challenges
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How it works
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In plain English

Your thyroid evolved when humans ate lots of animal foods high in zinc, iron, and magnesium, so these nutrients might be the best for keeping it working well.

See the scientific wording

The human thyroid evolved in the context of a high-fat, animal-based diet rich in zinc, iron, and magnesium, suggesting these nutrients are optimal for its function.

Score breakdown, mechanism chain, raw evidence, ideal studies needed

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.